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Influence of Multivector Field on Paste Preparation and Formation of Negative Electrodes of Lead Batteries

by 1,*, 1 and 2
1
Institute of Electrochemistry and Energy Systems, Lead–Acid Batteries Department, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 10, 1113 Sofia, Bulgaria
2
TASC Ltd., 1000 Sofia, Bulgaria
*
Author to whom correspondence should be addressed.
Academic Editor: Catia Arbizzani
Batteries 2021, 7(2), 24; https://doi.org/10.3390/batteries7020024
Received: 28 February 2021 / Revised: 22 March 2021 / Accepted: 30 March 2021 / Published: 9 April 2021
During the operation of the negative electrode, some critical processes take place, which are limiting factors for the operation of lead–acid batteries. To improve the efficiency of the negative active material and minimize these processes, external application of multivector field is proposed. Two applications of the multivector field are studied: during negative paste preparation and during formation. It is established that, when applying multivector field during negative paste preparation, the chemical processes proceed more efficiently. The results are better phase composition and crystallinity of the cured paste, thus increasing the capacity of the consequently built lead batteries by 12% on average. The application of a multivector field during the formation of negative active materials in lead batteries has a positive effect on the skeletal structure, the size and shape of the Pb crystals. This ensures longer service life, which is confirmed by the 17.5% Depth of Discharge continuous tests on 12 V/75 Ah batteries. The batteries formed under the influence of external multivector field showed 20% longer cycle life. Based on the experimental result, a most probable mechanism of the influence of the multivector field on the chemical and electrochemical processes in lead batteries during negative paste preparation and formation of negative active masses is proposed. View Full-Text
Keywords: lead–acid battery; formation process; negative active material; paste electrode; magnetic field lead–acid battery; formation process; negative active material; paste electrode; magnetic field
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MDPI and ACS Style

Shirov, B.; Naidenov, V.; Markov, U. Influence of Multivector Field on Paste Preparation and Formation of Negative Electrodes of Lead Batteries. Batteries 2021, 7, 24. https://doi.org/10.3390/batteries7020024

AMA Style

Shirov B, Naidenov V, Markov U. Influence of Multivector Field on Paste Preparation and Formation of Negative Electrodes of Lead Batteries. Batteries. 2021; 7(2):24. https://doi.org/10.3390/batteries7020024

Chicago/Turabian Style

Shirov, Boris, Vesselin Naidenov, and Urii Markov. 2021. "Influence of Multivector Field on Paste Preparation and Formation of Negative Electrodes of Lead Batteries" Batteries 7, no. 2: 24. https://doi.org/10.3390/batteries7020024

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